Vulnerability identifier: #VU50722

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26753

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
NeDi
Server applications / SCADA systems

Vendor: nedi.ch

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to an error in the System Files function on the endpoint /System-Files.php within the txt HTTP POST parameter. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

NeDi: 1.9C

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External links
http://n4nj0.github.io/advisories/nedi-multiple-vulnerabilities-i/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.